Clean-out fitting for pipes.



J. W. POWER.

CLEAN'OUT FITTING FOR PIPES.

APPLICATION men JULY 23,1914.

1,149,465. Patented Aug. 10, 1915.

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Power", MA. 39 a.

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JOHN W. POWER, OF PEAIBOIDY, MASSACHUSETTS.

CLEAN-OUT FITTING FOR PIPES.

To aZZwlwmitma-g concern:

Be it known that 1, JOHN. W. POWER, a citizen of the United States, and resident of Peabody, in the county of Essex and State of Massachusetts, have invented new and useful Improvements in Clean-Out Fittings for Pipes, of which the following is a specification.

This invention relates to a clean-out plug and sleeve for the dead-end of a pipe, and its object is to provide a novel and simple clean-out fitting for soil pipes, which shall be more secure against the escape of gas, and more convenient to operate than fittings of similar character heretofore used.

In. the accompanying drawings which illustrate one embodiment of the invention, Figure 1 is a longitudinal central section through the end of a pipe with the sleeve and plug in position; Fig. 2 is a side elevation of the plug, and horizontal section through the sleeve, said parts being shown unassembled; Fig. 3 is a side elevation of the plug and sleeve assembled; Fig. is a section through the'line w-a: of Fig. l; and Fig. 5 is a plan view of the sleeve.

' Referring to the drawings, P represents a soil pipe having a hub or enlargement A at .its end. Within the hub A is a sleeve B terminating short of the outer end of the hub, and abutting against the shoulder between the hub A and the pipe proper. The sleeve B is preferably-flanged or flared at its inner'end, as shown at b, so as to firmly erably tapered, as shown in the drawings,

toward the inner end of the plug, and the walls of the sleeve. occupied by the thread 0, are correspondingly tapered from the outer end of the sleeve inward.

Between the inner end of the sleeve B and the hub A is a packing E of oakurn or other suitable packing material tightly forced into the space between the sleeve and Specification of Letters Patent.

thread connection with the sleeve.

Patented Aug. 10, 1915}.

Application filed July 23, 1914. Serial No. 852,704.

the hub. At the outer end of the sleeve B is a seal of lead or other soft metal occupying the space between the outer end of the sleeve B and the hub A, and also between the plug C and the hub A. The sealing material D is preferably poured into the recess while in molten condition and then hammered or otherwise packed down to form a tight seal directly between the plug and the hub, and also between the sleeve and the hub. Heretofore it has been the practice to use a sleeve corresponding to the sleeve B, which projects beyond the end of the hub A, whereby the seal is formed exclusively between the sleeve and the hub leaving the plug C unsealed eX- cepting in so far as it is sealed by the-screw y looseness or imperfection in the screw threads, therefore, permits the escape of gas from the soil pipe between the sleeve and plug, whereasinmy construction the plug itself is directly sealed, to the hub by the sealing material D and the escape of gas is therefore rendered impossible.

The tapered construction of the plug and sleeve makes it easy to remove the plug for the purpose of cleaning out the dead-end of the pipe by merely giving the plug a lateral blow which tends to loosen the screw connection and permits the plug readily to be Withdrawn from its seat. Similarly, when the plug is again inserted the tapered construction makes it easy to place the plug again in closed position, and the tapered ner of a wedge, again insures an effective closure with the seal D. If necessary or desirable the tightness of the seal may be further insured after the plug is again inserted into the pipe end, by hammering or tamping down the seal D about the plug.

In order to prevent the sleeve B from turning in the hub when the plug is unscrewed or screwed up, the exterior surface of the sleeve near its outer end is provided with means which cooperate with the sealing material D to prevent rotation of the sleeve, such means consisting as herein shown of the recesses or depressions F into which the material D flows, thus tightly locking the sleeve against turning. In place of the depressions, projections might be used, which could be embedded in the sealing material I), or other eontrivanees for preventing' the rotation of the sleeve B by eoope 'ation with the sealing material D.

I claim In combination with a pipe having a hub at its end, a tubular sleeve within the hub terminating short of the outer end of the hub, a plug reinovably secured to the inte rior ol the sleeve and projecting beyond the outer end thereof, and a body of packing material between the hub and the sleeve and between the hub and the plusr. fm'mino a single sea] by which the sleeve and plug are both directly sealed to the hub, and by which the sleeve is permanently sealed to the hub while the plug may be removed from the sleeve without disturbing either the sleeve or the said body of packing material. Signed by me at Boston, hlassaehusetts, thisQOth day of July 191%.

JOHN \V. POlVER. \Vitnesses CHARLES D. \VQODBERRY, FLORENCE A. COLLINS. 

